Suggestions by @bryanblueblurhedgehog

Brina Palencia

as Charmy in Sonic Adventure 3

Score: -1

Keith Silverstein

as Vector in Sonic Adventure 3

Score: +2

Wally Wingert

as Cubot in Sonic Adventure 3

Score: +2

Kirk Thornton

as Orbot in Sonic Adventure 3

Score: +2

Kyle Herbert

as Big The Cat in Sonic Adventure 3

Score: +2

Richard Epcar

as Dr. Eggman Nega in Sonic Adventure 3

Score: +1

Ariana Grande

as Shelby The Wolf in Sonic Adventure 3

Score: +1

Dove Cameron

as Sofia The Hedgehog in Sonic Adventure 3

Score: +1

Kristen Bell

as Bliza in Sonic Adventure 3

Score: +1

Patricia Summersett

as Whisper in Sonic Adventure 3

Score: +1

Katy Perry

as Andy The Hedgehog in Sonic Adventure 3

Score: +2

Nika Futterman

as Sticks in Sonic Adventure 3

Score: +2

Mae Whitman

as Maria Robotnik in Sonic Adventure 3

Score: -1

Nika Futterman

as Maria Robotnik in Sonic Adventure 3

Score: -3

Xander Mobus

as Seelkadoom in Sonic Adventure 3

Score: +1

Robbie Daymond

as Nazo in Sonic Adventure 3

Score: +2

Grant George

as Nazo in Sonic Adventure 3

Score: -3

Ryan Bartley

as Sage in Sonic Adventure 3

Score: +2

Mike Pollock

as Dr. Eggman in Sonic Adventure 3

Score: +2

Aaron LaPlante

as Omega in Sonic Adventure 3

Score: +3